Re: Streaming replication and pg_xlogfile_name()

Fujii Masao wrote:
> On Mon, Feb 22, 2010 at 9:30 PM, Heikki Linnakangas
> <heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
>> Thinking about this again, I'm not sure this is a good idea. Using
>> curFileTLI makes sense if you're going to call pg_xlogfile_name() and
>> would expect it to return the filename of the file containing the WAL
>> record being replayed. But in other contexts, it seems strange for
>> pg_last_replay_timeline() to return the TLI of the first record in the
>> file, rather than the actual record replayed.
>
> Umm... though I might misunderstand your point, curFileTLI is the TLI
> appearing in the name of WAL file.

Yes.

> So it's not the TLI of the first record in the file, isn't it?

Hmm, or is it the TLI of the last record? Not sure. Anyway, if there's a
TLI switch in the current WAL file, curFileTLI doesn't always represent
the TLI of the current record.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com